LDM1 membrane air dryer
Classic
The Festo LDM1 membrane air dryer dries compressed air without external energy through permeation across a semipermeable membrane. Moisture diffuses from the pressure side through the membrane and is discharged via a purge air fraction, requiring no refrigerating machines or desiccants. The range covers 12 versions with nominal flow rates of 300, 600 and 1000 l/min in port sizes G 1/2 to G 1, all in MAXI frame size.
| Type | Nominal flow rate | Port size |
|---|---|---|
| LDM1-D-MAXI-300 (543664) | 300 l/min | D (Classic) |
| LDM1-1/2-D-MAXI-300 (543667) | 300 l/min | G 1/2 |
| LDM1-3/4-D-MAXI-300 (543670) | 300 l/min | G 3/4 |
| LDM1-1-D-MAXI-300 (543673) | 300 l/min | G 1 |
| LDM1-D-MAXI-600 (543665) | 600 l/min | D (Classic) |
| LDM1-1/2-D-MAXI-600 (543668) | 600 l/min | G 1/2 |
| LDM1-3/4-D-MAXI-600 (543671) | 600 l/min | G 3/4 |
| LDM1-1-D-MAXI-600 (543674) | 600 l/min | G 1 |
| LDM1-D-MAXI-1000 (543666) | 1000 l/min | D (Classic) |
| LDM1-1/2-D-MAXI-1000 (543669) | 1000 l/min | G 1/2 |
| LDM1-3/4-D-MAXI-1000 (543672) | 1000 l/min | G 3/4 |
| LDM1-1-D-MAXI-1000 (543675) | 1000 l/min | G 1 |
Typical applications: Drying of small to medium compressed air volumes without a power supply (mobile equipment, outdoor installations), prevention of condensate formation in distribution lines at low ambient temperatures, supply of instrument and control air circuits, and combination with LF pre-filters and LFMA fine filters for compact, low-maintenance preparation trains in special-purpose machines.
